Hiflofiltro HFF5016 Dual Stage Racing Foam Air Filter Fits: KTM 125/144/150 SX 07-11, 200 XC/XC-W 08-11, 250 SXF/SX 07-11, 250 XC/XC-F/XCF-W 08-11, 300 XC/XC-W 08-11, 400 XC-W 08-11, 450 SXF 07-11, 125/450/530 EXC/XC-F 08-11, 505 XC-F 08-11, 450/560 SMR 08-11, 450 SX/XC 08-11, 525 XC 08-11 and more Competition off-road air filters manufactured in the Netherlands using a special dual-layer foam, formulated for maximum filtration and optimum air flow for improved power Coarse open-pore foam catches airborne dirt, grime and sand while the fine open-pore inner foam acts as a second filter to trap the smallest particles Top quality materials and superior construction allow the filter to be used over and over again without any loss of performance